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Model 620 Gearbox Parts Drawing and List - S12-AD-2
Item No. Part Number Item No. Part Number
7 Thrust Bearing 24 Oil Seal
8 Thrust Ring 26 Drive Sleeve
11 Yoke 27 O-Ring Shaft Case
12 Bearing - Upper Pinion 28 Case
13 Bushing - Upper Pinion 30 Coupling Hub
14 Adjustment Shims 31 Gear Set w/ Cap Screws
15 Pinion Cap 32 O-Ring Body
16 O-Ring Pinion Cap 34 Main Bearing
17 Adjustment Shims 35 Body Assembly
18 Bearing - Lower Pinion 37 Adjustment Shim
22 Yoke Cap    
23 Wear Sleeve